Join our Whatsapp channel At least 31 people died in southern Bolivia on Monday when their bus plunged into a ravine after colliding with a pick-up truck, bringing to nearly 70 the number killed on area roads in recent days, investigators said. The crash in southern Potosi department came two days after at least 37 people died when a bus heading to the Oruro Carnival, one of the biggest festivals in Latin America, collided with another bus near the city of Uyuni. Monday’s accident took place aro